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# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt
from __future__ import unicode_literals
import copy
import json
import frappe
from frappe import _
from frappe.model.meta import get_field_precision
from frappe.utils import cint, cstr, flt, get_link_to_form, getdate, now
from six import iteritems
import erpnext
from erpnext.stock.utils import (
get_bin,
get_incoming_outgoing_rate_for_cancel,
get_valuation_method,
)
# future reposting
class NegativeStockError(frappe.ValidationError): pass
class SerialNoExistsInFutureTransaction(frappe.ValidationError):
pass
_exceptions = frappe.local('stockledger_exceptions')
# _exceptions = []
def make_sl_entries(sl_entries, allow_negative_stock=False, via_landed_cost_voucher=False):
from erpnext.controllers.stock_controller import future_sle_exists
if sl_entries:
from erpnext.stock.utils import update_bin
cancel = sl_entries[0].get("is_cancelled")
if cancel:
validate_cancellation(sl_entries)
set_as_cancel(sl_entries[0].get('voucher_type'), sl_entries[0].get('voucher_no'))
args = get_args_for_future_sle(sl_entries[0])
future_sle_exists(args, sl_entries)
for sle in sl_entries:
if sle.serial_no:
validate_serial_no(sle)
if cancel:
sle['actual_qty'] = -flt(sle.get('actual_qty'))
if sle['actual_qty'] < 0 and not sle.get('outgoing_rate'):
sle['outgoing_rate'] = get_incoming_outgoing_rate_for_cancel(sle.item_code,
sle.voucher_type, sle.voucher_no, sle.voucher_detail_no)
sle['incoming_rate'] = 0.0
if sle['actual_qty'] > 0 and not sle.get('incoming_rate'):
sle['incoming_rate'] = get_incoming_outgoing_rate_for_cancel(sle.item_code,
sle.voucher_type, sle.voucher_no, sle.voucher_detail_no)
sle['outgoing_rate'] = 0.0
if sle.get("actual_qty") or sle.get("voucher_type")=="Stock Reconciliation":
sle_doc = make_entry(sle, allow_negative_stock, via_landed_cost_voucher)
args = sle_doc.as_dict()
if sle.get("voucher_type") == "Stock Reconciliation":
# preserve previous_qty_after_transaction for qty reposting
args.previous_qty_after_transaction = sle.get("previous_qty_after_transaction")
update_bin(args, allow_negative_stock, via_landed_cost_voucher)
def get_args_for_future_sle(row):
return frappe._dict({
'voucher_type': row.get('voucher_type'),
'voucher_no': row.get('voucher_no'),
'posting_date': row.get('posting_date'),
'posting_time': row.get('posting_time')
})
def validate_serial_no(sle):
from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
for sn in get_serial_nos(sle.serial_no):
args = copy.deepcopy(sle)
args.serial_no = sn
args.warehouse = ''
vouchers = []
for row in get_stock_ledger_entries(args, '>'):
voucher_type = frappe.bold(row.voucher_type)
voucher_no = frappe.bold(get_link_to_form(row.voucher_type, row.voucher_no))
vouchers.append(f'{voucher_type} {voucher_no}')
if vouchers:
serial_no = frappe.bold(sn)
msg = (f'''The serial no {serial_no} has been used in the future transactions so you need to cancel them first.
The list of the transactions are as below.''' + '<br><br><ul><li>')
msg += '</li><li>'.join(vouchers)
msg += '</li></ul>'
title = 'Cannot Submit' if not sle.get('is_cancelled') else 'Cannot Cancel'
frappe.throw(_(msg), title=_(title), exc=SerialNoExistsInFutureTransaction)
def validate_cancellation(args):
if args[0].get("is_cancelled"):
repost_entry = frappe.db.get_value("Repost Item Valuation", {
'voucher_type': args[0].voucher_type,
'voucher_no': args[0].voucher_no,
'docstatus': 1
}, ['name', 'status'], as_dict=1)
if repost_entry:
if repost_entry.status == 'In Progress':
frappe.throw(_("Cannot cancel the transaction. Reposting of item valuation on submission is not completed yet."))
if repost_entry.status == 'Queued':
doc = frappe.get_doc("Repost Item Valuation", repost_entry.name)
doc.cancel()
doc.delete()
def set_as_cancel(voucher_type, voucher_no):
frappe.db.sql("""update `tabStock Ledger Entry` set is_cancelled=1,
modified=%s, modified_by=%s
where voucher_type=%s and voucher_no=%s and is_cancelled = 0""",
(now(), frappe.session.user, voucher_type, voucher_no))
def make_entry(args, allow_negative_stock=False, via_landed_cost_voucher=False):
args["doctype"] = "Stock Ledger Entry"
sle = frappe.get_doc(args)
sle.flags.ignore_permissions = 1
sle.allow_negative_stock=allow_negative_stock
sle.via_landed_cost_voucher = via_landed_cost_voucher
sle.submit()
return sle
def repost_future_sle(args=None, voucher_type=None, voucher_no=None, allow_negative_stock=None, via_landed_cost_voucher=False, doc=None):
if not args and voucher_type and voucher_no:
args = get_items_to_be_repost(voucher_type, voucher_no, doc)
distinct_item_warehouses = get_distinct_item_warehouse(args, doc)
i = get_current_index(doc) or 0
while i < len(args):
validate_item_warehouse(args[i])
obj = update_entries_after({
'item_code': args[i].get('item_code'),
'warehouse': args[i].get('warehouse'),
'posting_date': args[i].get('posting_date'),
'posting_time': args[i].get('posting_time'),
'creation': args[i].get('creation'),
'distinct_item_warehouses': distinct_item_warehouses
}, allow_negative_stock=allow_negative_stock, via_landed_cost_voucher=via_landed_cost_voucher)
distinct_item_warehouses[(args[i].get('item_code'), args[i].get('warehouse'))].reposting_status = True
if obj.new_items_found:
for item_wh, data in iteritems(distinct_item_warehouses):
if ('args_idx' not in data and not data.reposting_status) or (data.sle_changed and data.reposting_status):
data.args_idx = len(args)
args.append(data.sle)
elif data.sle_changed and not data.reposting_status:
args[data.args_idx] = data.sle
data.sle_changed = False
i += 1
if doc and i % 2 == 0:
update_args_in_repost_item_valuation(doc, i, args, distinct_item_warehouses)
if doc and args:
update_args_in_repost_item_valuation(doc, i, args, distinct_item_warehouses)
def validate_item_warehouse(args):
for field in ['item_code', 'warehouse', 'posting_date', 'posting_time']:
if not args.get(field):
validation_msg = f'The field {frappe.unscrub(args.get(field))} is required for the reposting'
frappe.throw(_(validation_msg))
def update_args_in_repost_item_valuation(doc, index, args, distinct_item_warehouses):
frappe.db.set_value(doc.doctype, doc.name, {
'items_to_be_repost': json.dumps(args, default=str),
'distinct_item_and_warehouse': json.dumps({str(k): v for k,v in distinct_item_warehouses.items()}, default=str),
'current_index': index
})
frappe.db.commit()
frappe.publish_realtime('item_reposting_progress', {
'name': doc.name,
'items_to_be_repost': json.dumps(args, default=str),
'current_index': index
})
def get_items_to_be_repost(voucher_type, voucher_no, doc=None):
if doc and doc.items_to_be_repost:
return json.loads(doc.items_to_be_repost) or []
return frappe.db.get_all("Stock Ledger Entry",
filters={"voucher_type": voucher_type, "voucher_no": voucher_no},
fields=["item_code", "warehouse", "posting_date", "posting_time", "creation"],
order_by="creation asc",
group_by="item_code, warehouse"
)
def get_distinct_item_warehouse(args=None, doc=None):
distinct_item_warehouses = {}
if doc and doc.distinct_item_and_warehouse:
distinct_item_warehouses = json.loads(doc.distinct_item_and_warehouse)
distinct_item_warehouses = {frappe.safe_eval(k): frappe._dict(v) for k, v in distinct_item_warehouses.items()}
else:
for i, d in enumerate(args):
distinct_item_warehouses.setdefault((d.item_code, d.warehouse), frappe._dict({
"reposting_status": False,
"sle": d,
"args_idx": i
}))
return distinct_item_warehouses
def get_current_index(doc=None):
if doc and doc.current_index:
return doc.current_index
class update_entries_after(object):
"""
update valution rate and qty after transaction
from the current time-bucket onwards
:param args: args as dict
args = {
"item_code": "ABC",
"warehouse": "XYZ",
"posting_date": "2012-12-12",
"posting_time": "12:00"
}
"""
def __init__(self, args, allow_zero_rate=False, allow_negative_stock=None, via_landed_cost_voucher=False, verbose=1):
self.exceptions = {}
self.verbose = verbose
self.allow_zero_rate = allow_zero_rate
self.via_landed_cost_voucher = via_landed_cost_voucher
self.allow_negative_stock = allow_negative_stock \
or cint(frappe.db.get_single_value("Stock Settings", "allow_negative_stock"))
self.args = frappe._dict(args)
self.item_code = args.get("item_code")
if self.args.sle_id:
self.args['name'] = self.args.sle_id
self.company = frappe.get_cached_value("Warehouse", self.args.warehouse, "company")
self.get_precision()
self.valuation_method = get_valuation_method(self.item_code)
self.new_items_found = False
self.distinct_item_warehouses = args.get("distinct_item_warehouses", frappe._dict())
self.data = frappe._dict()
self.initialize_previous_data(self.args)
self.build()
def get_precision(self):
company_base_currency = frappe.get_cached_value('Company', self.company, "default_currency")
self.precision = get_field_precision(frappe.get_meta("Stock Ledger Entry").get_field("stock_value"),
currency=company_base_currency)
def initialize_previous_data(self, args):
"""
Get previous sl entries for current item for each related warehouse
and assigns into self.data dict
:Data Structure:
self.data = {
warehouse1: {
'previus_sle': {},
'qty_after_transaction': 10,
'valuation_rate': 100,
'stock_value': 1000,
'prev_stock_value': 1000,
'stock_queue': '[[10, 100]]',
'stock_value_difference': 1000
}
}
"""
self.data.setdefault(args.warehouse, frappe._dict())
warehouse_dict = self.data[args.warehouse]
previous_sle = get_previous_sle_of_current_voucher(args)
warehouse_dict.previous_sle = previous_sle
for key in ("qty_after_transaction", "valuation_rate", "stock_value"):
setattr(warehouse_dict, key, flt(previous_sle.get(key)))
warehouse_dict.update({
"prev_stock_value": previous_sle.stock_value or 0.0,
"stock_queue": json.loads(previous_sle.stock_queue or "[]"),
"stock_value_difference": 0.0
})
def build(self):
from erpnext.controllers.stock_controller import future_sle_exists
if self.args.get("sle_id"):
self.process_sle_against_current_timestamp()
if not future_sle_exists(self.args):
self.update_bin()
else:
entries_to_fix = self.get_future_entries_to_fix()
i = 0
while i < len(entries_to_fix):
sle = entries_to_fix[i]
i += 1
self.process_sle(sle)
if sle.dependant_sle_voucher_detail_no:
entries_to_fix = self.get_dependent_entries_to_fix(entries_to_fix, sle)
self.update_bin()
if self.exceptions:
self.raise_exceptions()
def process_sle_against_current_timestamp(self):
sl_entries = self.get_sle_against_current_voucher()
for sle in sl_entries:
self.process_sle(sle)
def get_sle_against_current_voucher(self):
self.args['time_format'] = '%H:%i:%s'
return frappe.db.sql("""
select
*, timestamp(posting_date, posting_time) as "timestamp"
from
`tabStock Ledger Entry`
where
item_code = %(item_code)s
and warehouse = %(warehouse)s
and is_cancelled = 0
and timestamp(posting_date, time_format(posting_time, %(time_format)s)) = timestamp(%(posting_date)s, time_format(%(posting_time)s, %(time_format)s))
order by
creation ASC
for update
""", self.args, as_dict=1)
def get_future_entries_to_fix(self):
# includes current entry!
args = self.data[self.args.warehouse].previous_sle \
or frappe._dict({"item_code": self.item_code, "warehouse": self.args.warehouse})
return list(self.get_sle_after_datetime(args))
def get_dependent_entries_to_fix(self, entries_to_fix, sle):
dependant_sle = get_sle_by_voucher_detail_no(sle.dependant_sle_voucher_detail_no,
excluded_sle=sle.name)
if not dependant_sle:
return entries_to_fix
elif dependant_sle.item_code == self.item_code and dependant_sle.warehouse == self.args.warehouse:
return entries_to_fix
elif dependant_sle.item_code != self.item_code:
self.update_distinct_item_warehouses(dependant_sle)
return entries_to_fix
elif dependant_sle.item_code == self.item_code and dependant_sle.warehouse in self.data:
return entries_to_fix
else:
return self.append_future_sle_for_dependant(dependant_sle, entries_to_fix)
def update_distinct_item_warehouses(self, dependant_sle):
key = (dependant_sle.item_code, dependant_sle.warehouse)
val = frappe._dict({
"sle": dependant_sle
})
if key not in self.distinct_item_warehouses:
self.distinct_item_warehouses[key] = val
self.new_items_found = True
else:
existing_sle_posting_date = self.distinct_item_warehouses[key].get("sle", {}).get("posting_date")
if getdate(dependant_sle.posting_date) < getdate(existing_sle_posting_date):
val.sle_changed = True
self.distinct_item_warehouses[key] = val
self.new_items_found = True
def append_future_sle_for_dependant(self, dependant_sle, entries_to_fix):
self.initialize_previous_data(dependant_sle)
args = self.data[dependant_sle.warehouse].previous_sle \
or frappe._dict({"item_code": self.item_code, "warehouse": dependant_sle.warehouse})
future_sle_for_dependant = list(self.get_sle_after_datetime(args))
entries_to_fix.extend(future_sle_for_dependant)
return sorted(entries_to_fix, key=lambda k: k['timestamp'])
def process_sle(self, sle):
# previous sle data for this warehouse
self.wh_data = self.data[sle.warehouse]
if (sle.serial_no and not self.via_landed_cost_voucher) or not cint(self.allow_negative_stock):
# validate negative stock for serialized items, fifo valuation
# or when negative stock is not allowed for moving average
if not self.validate_negative_stock(sle):
self.wh_data.qty_after_transaction += flt(sle.actual_qty)
return
# Get dynamic incoming/outgoing rate
if not self.args.get("sle_id"):
self.get_dynamic_incoming_outgoing_rate(sle)
if sle.serial_no:
self.get_serialized_values(sle)
self.wh_data.qty_after_transaction += flt(sle.actual_qty)
if sle.voucher_type == "Stock Reconciliation":
self.wh_data.qty_after_transaction = sle.qty_after_transaction
self.wh_data.stock_value = flt(self.wh_data.qty_after_transaction) * flt(self.wh_data.valuation_rate)
else:
if sle.voucher_type=="Stock Reconciliation" and not sle.batch_no:
# assert
self.wh_data.valuation_rate = sle.valuation_rate
self.wh_data.qty_after_transaction = sle.qty_after_transaction
self.wh_data.stock_queue = [[self.wh_data.qty_after_transaction, self.wh_data.valuation_rate]]
self.wh_data.stock_value = flt(self.wh_data.qty_after_transaction) * flt(self.wh_data.valuation_rate)
else:
if self.valuation_method == "Moving Average":
self.get_moving_average_values(sle)
self.wh_data.qty_after_transaction += flt(sle.actual_qty)
self.wh_data.stock_value = flt(self.wh_data.qty_after_transaction) * flt(self.wh_data.valuation_rate)
else:
self.get_fifo_values(sle)
self.wh_data.qty_after_transaction += flt(sle.actual_qty)
self.wh_data.stock_value = sum((flt(batch[0]) * flt(batch[1]) for batch in self.wh_data.stock_queue))
# rounding as per precision
self.wh_data.stock_value = flt(self.wh_data.stock_value, self.precision)
stock_value_difference = self.wh_data.stock_value - self.wh_data.prev_stock_value
self.wh_data.prev_stock_value = self.wh_data.stock_value
# update current sle
sle.qty_after_transaction = self.wh_data.qty_after_transaction
sle.valuation_rate = self.wh_data.valuation_rate
sle.stock_value = self.wh_data.stock_value
sle.stock_queue = json.dumps(self.wh_data.stock_queue)
sle.stock_value_difference = stock_value_difference
sle.doctype="Stock Ledger Entry"
frappe.get_doc(sle).db_update()
if not self.args.get("sle_id"):
self.update_outgoing_rate_on_transaction(sle)
def validate_negative_stock(self, sle):
"""
validate negative stock for entries current datetime onwards
will not consider cancelled entries
"""
diff = self.wh_data.qty_after_transaction + flt(sle.actual_qty)
if diff < 0 and abs(diff) > 0.0001:
# negative stock!
exc = sle.copy().update({"diff": diff})
self.exceptions.setdefault(sle.warehouse, []).append(exc)
return False
else:
return True
def get_dynamic_incoming_outgoing_rate(self, sle):
# Get updated incoming/outgoing rate from transaction
if sle.recalculate_rate:
rate = self.get_incoming_outgoing_rate_from_transaction(sle)
if flt(sle.actual_qty) >= 0:
sle.incoming_rate = rate
else:
sle.outgoing_rate = rate
def get_incoming_outgoing_rate_from_transaction(self, sle):
rate = 0
# Material Transfer, Repack, Manufacturing
if sle.voucher_type == "Stock Entry":
self.recalculate_amounts_in_stock_entry(sle.voucher_no)
rate = frappe.db.get_value("Stock Entry Detail", sle.voucher_detail_no, "valuation_rate")
# Sales and Purchase Return
elif sle.voucher_type in ("Purchase Receipt", "Purchase Invoice", "Delivery Note", "Sales Invoice"):
if frappe.get_cached_value(sle.voucher_type, sle.voucher_no, "is_return"):
from erpnext.controllers.sales_and_purchase_return import (
get_rate_for_return, # don't move this import to top
)
rate = get_rate_for_return(sle.voucher_type, sle.voucher_no, sle.item_code,
voucher_detail_no=sle.voucher_detail_no, sle = sle)
else:
if sle.voucher_type in ("Purchase Receipt", "Purchase Invoice"):
rate_field = "valuation_rate"
else:
rate_field = "incoming_rate"
# check in item table
item_code, incoming_rate = frappe.db.get_value(sle.voucher_type + " Item",
sle.voucher_detail_no, ["item_code", rate_field])
if item_code == sle.item_code:
rate = incoming_rate
else:
if sle.voucher_type in ("Delivery Note", "Sales Invoice"):
ref_doctype = "Packed Item"
else:
ref_doctype = "Purchase Receipt Item Supplied"
rate = frappe.db.get_value(ref_doctype, {"parent_detail_docname": sle.voucher_detail_no,
"item_code": sle.item_code}, rate_field)
return rate
def update_outgoing_rate_on_transaction(self, sle):
"""
Update outgoing rate in Stock Entry, Delivery Note, Sales Invoice and Sales Return
In case of Stock Entry, also calculate FG Item rate and total incoming/outgoing amount
"""
if sle.actual_qty and sle.voucher_detail_no:
outgoing_rate = abs(flt(sle.stock_value_difference)) / abs(sle.actual_qty)
if flt(sle.actual_qty) < 0 and sle.voucher_type == "Stock Entry":
self.update_rate_on_stock_entry(sle, outgoing_rate)
elif sle.voucher_type in ("Delivery Note", "Sales Invoice"):
self.update_rate_on_delivery_and_sales_return(sle, outgoing_rate)
elif flt(sle.actual_qty) < 0 and sle.voucher_type in ("Purchase Receipt", "Purchase Invoice"):
self.update_rate_on_purchase_receipt(sle, outgoing_rate)
def update_rate_on_stock_entry(self, sle, outgoing_rate):
frappe.db.set_value("Stock Entry Detail", sle.voucher_detail_no, "basic_rate", outgoing_rate)
# Update outgoing item's rate, recalculate FG Item's rate and total incoming/outgoing amount
if not sle.dependant_sle_voucher_detail_no:
self.recalculate_amounts_in_stock_entry(sle.voucher_no)
def recalculate_amounts_in_stock_entry(self, voucher_no):
stock_entry = frappe.get_doc("Stock Entry", voucher_no, for_update=True)
stock_entry.calculate_rate_and_amount(reset_outgoing_rate=False, raise_error_if_no_rate=False)
stock_entry.db_update()
for d in stock_entry.items:
d.db_update()
def update_rate_on_delivery_and_sales_return(self, sle, outgoing_rate):
# Update item's incoming rate on transaction
item_code = frappe.db.get_value(sle.voucher_type + " Item", sle.voucher_detail_no, "item_code")
if item_code == sle.item_code:
frappe.db.set_value(sle.voucher_type + " Item", sle.voucher_detail_no, "incoming_rate", outgoing_rate)
else:
# packed item
frappe.db.set_value("Packed Item",
{"parent_detail_docname": sle.voucher_detail_no, "item_code": sle.item_code},
"incoming_rate", outgoing_rate)
def update_rate_on_purchase_receipt(self, sle, outgoing_rate):
if frappe.db.exists(sle.voucher_type + " Item", sle.voucher_detail_no):
frappe.db.set_value(sle.voucher_type + " Item", sle.voucher_detail_no, "base_net_rate", outgoing_rate)
else:
frappe.db.set_value("Purchase Receipt Item Supplied", sle.voucher_detail_no, "rate", outgoing_rate)
# Recalculate subcontracted item's rate in case of subcontracted purchase receipt/invoice
if frappe.get_cached_value(sle.voucher_type, sle.voucher_no, "is_subcontracted") == 'Yes':
doc = frappe.get_doc(sle.voucher_type, sle.voucher_no)
doc.update_valuation_rate(reset_outgoing_rate=False)
for d in (doc.items + doc.supplied_items):
d.db_update()
def get_serialized_values(self, sle):
incoming_rate = flt(sle.incoming_rate)
actual_qty = flt(sle.actual_qty)
serial_nos = cstr(sle.serial_no).split("\n")
if incoming_rate < 0:
# wrong incoming rate
incoming_rate = self.wh_data.valuation_rate
stock_value_change = 0
if incoming_rate:
stock_value_change = actual_qty * incoming_rate
elif actual_qty < 0:
# In case of delivery/stock issue, get average purchase rate
# of serial nos of current entry
if not sle.is_cancelled:
outgoing_value = self.get_incoming_value_for_serial_nos(sle, serial_nos)
stock_value_change = -1 * outgoing_value
else:
stock_value_change = actual_qty * sle.outgoing_rate
new_stock_qty = self.wh_data.qty_after_transaction + actual_qty
if new_stock_qty > 0:
new_stock_value = (self.wh_data.qty_after_transaction * self.wh_data.valuation_rate) + stock_value_change
if new_stock_value >= 0:
# calculate new valuation rate only if stock value is positive
# else it remains the same as that of previous entry
self.wh_data.valuation_rate = new_stock_value / new_stock_qty
if not self.wh_data.valuation_rate and sle.voucher_detail_no:
allow_zero_rate = self.check_if_allow_zero_valuation_rate(sle.voucher_type, sle.voucher_detail_no)
if not allow_zero_rate:
self.wh_data.valuation_rate = get_valuation_rate(sle.item_code, sle.warehouse,
sle.voucher_type, sle.voucher_no, self.allow_zero_rate,
currency=erpnext.get_company_currency(sle.company))
def get_incoming_value_for_serial_nos(self, sle, serial_nos):
# get rate from serial nos within same company
all_serial_nos = frappe.get_all("Serial No",
fields=["purchase_rate", "name", "company"],
filters = {'name': ('in', serial_nos)})
incoming_values = sum(flt(d.purchase_rate) for d in all_serial_nos if d.company==sle.company)
# Get rate for serial nos which has been transferred to other company
invalid_serial_nos = [d.name for d in all_serial_nos if d.company!=sle.company]
for serial_no in invalid_serial_nos:
incoming_rate = frappe.db.sql("""
select incoming_rate
from `tabStock Ledger Entry`
where
company = %s
and actual_qty > 0
and (serial_no = %s
or serial_no like %s
or serial_no like %s
or serial_no like %s
)
order by posting_date desc
limit 1
""", (sle.company, serial_no, serial_no+'\n%', '%\n'+serial_no, '%\n'+serial_no+'\n%'))
incoming_values += flt(incoming_rate[0][0]) if incoming_rate else 0
return incoming_values
def get_moving_average_values(self, sle):
actual_qty = flt(sle.actual_qty)
new_stock_qty = flt(self.wh_data.qty_after_transaction) + actual_qty
if new_stock_qty >= 0:
if actual_qty > 0:
if flt(self.wh_data.qty_after_transaction) <= 0:
self.wh_data.valuation_rate = sle.incoming_rate
else:
new_stock_value = (self.wh_data.qty_after_transaction * self.wh_data.valuation_rate) + \
(actual_qty * sle.incoming_rate)
self.wh_data.valuation_rate = new_stock_value / new_stock_qty
elif sle.outgoing_rate:
if new_stock_qty:
new_stock_value = (self.wh_data.qty_after_transaction * self.wh_data.valuation_rate) + \
(actual_qty * sle.outgoing_rate)
self.wh_data.valuation_rate = new_stock_value / new_stock_qty
else:
self.wh_data.valuation_rate = sle.outgoing_rate
else:
if flt(self.wh_data.qty_after_transaction) >= 0 and sle.outgoing_rate:
self.wh_data.valuation_rate = sle.outgoing_rate
if not self.wh_data.valuation_rate and actual_qty > 0:
self.wh_data.valuation_rate = sle.incoming_rate
# Get valuation rate from previous SLE or Item master, if item does not have the
# allow zero valuration rate flag set
if not self.wh_data.valuation_rate and sle.voucher_detail_no:
allow_zero_valuation_rate = self.check_if_allow_zero_valuation_rate(sle.voucher_type, sle.voucher_detail_no)
if not allow_zero_valuation_rate:
self.wh_data.valuation_rate = get_valuation_rate(sle.item_code, sle.warehouse,
sle.voucher_type, sle.voucher_no, self.allow_zero_rate,
currency=erpnext.get_company_currency(sle.company))
def get_fifo_values(self, sle):
incoming_rate = flt(sle.incoming_rate)
actual_qty = flt(sle.actual_qty)
outgoing_rate = flt(sle.outgoing_rate)
if actual_qty > 0:
if not self.wh_data.stock_queue:
self.wh_data.stock_queue.append([0, 0])
# last row has the same rate, just updated the qty
if self.wh_data.stock_queue[-1][1]==incoming_rate:
self.wh_data.stock_queue[-1][0] += actual_qty
else:
# Item has a positive balance qty, add new entry
if self.wh_data.stock_queue[-1][0] > 0:
self.wh_data.stock_queue.append([actual_qty, incoming_rate])
else: # negative balance qty
qty = self.wh_data.stock_queue[-1][0] + actual_qty
if qty > 0: # new balance qty is positive
self.wh_data.stock_queue[-1] = [qty, incoming_rate]
else: # new balance qty is still negative, maintain same rate
self.wh_data.stock_queue[-1][0] = qty
else:
qty_to_pop = abs(actual_qty)
while qty_to_pop:
if not self.wh_data.stock_queue:
# Get valuation rate from last sle if exists or from valuation rate field in item master
allow_zero_valuation_rate = self.check_if_allow_zero_valuation_rate(sle.voucher_type, sle.voucher_detail_no)
if not allow_zero_valuation_rate:
_rate = get_valuation_rate(sle.item_code, sle.warehouse,
sle.voucher_type, sle.voucher_no, self.allow_zero_rate,
currency=erpnext.get_company_currency(sle.company))
else:
_rate = 0
self.wh_data.stock_queue.append([0, _rate])
index = None
if outgoing_rate > 0:
# Find the entry where rate matched with outgoing rate
for i, v in enumerate(self.wh_data.stock_queue):
if v[1] == outgoing_rate:
index = i
break
# If no entry found with outgoing rate, collapse stack
if index is None: # nosemgrep
new_stock_value = sum((d[0]*d[1] for d in self.wh_data.stock_queue)) - qty_to_pop*outgoing_rate
new_stock_qty = sum((d[0] for d in self.wh_data.stock_queue)) - qty_to_pop
self.wh_data.stock_queue = [[new_stock_qty, new_stock_value/new_stock_qty if new_stock_qty > 0 else outgoing_rate]]
break
else:
index = 0
# select first batch or the batch with same rate
batch = self.wh_data.stock_queue[index]
if qty_to_pop >= batch[0]:
# consume current batch
qty_to_pop = _round_off_if_near_zero(qty_to_pop - batch[0])
self.wh_data.stock_queue.pop(index)
if not self.wh_data.stock_queue and qty_to_pop:
# stock finished, qty still remains to be withdrawn
# negative stock, keep in as a negative batch
self.wh_data.stock_queue.append([-qty_to_pop, outgoing_rate or batch[1]])
break
else:
# qty found in current batch
# consume it and exit
batch[0] = batch[0] - qty_to_pop
qty_to_pop = 0
stock_value = _round_off_if_near_zero(sum((flt(batch[0]) * flt(batch[1]) for batch in self.wh_data.stock_queue)))
stock_qty = _round_off_if_near_zero(sum((flt(batch[0]) for batch in self.wh_data.stock_queue)))
if stock_qty:
self.wh_data.valuation_rate = stock_value / flt(stock_qty)
if not self.wh_data.stock_queue:
self.wh_data.stock_queue.append([0, sle.incoming_rate or sle.outgoing_rate or self.wh_data.valuation_rate])
def check_if_allow_zero_valuation_rate(self, voucher_type, voucher_detail_no):
ref_item_dt = ""
if voucher_type == "Stock Entry":
ref_item_dt = voucher_type + " Detail"
elif voucher_type in ["Purchase Invoice", "Sales Invoice", "Delivery Note", "Purchase Receipt"]:
ref_item_dt = voucher_type + " Item"
if ref_item_dt:
return frappe.db.get_value(ref_item_dt, voucher_detail_no, "allow_zero_valuation_rate")
else:
return 0
def get_sle_before_datetime(self, args):
"""get previous stock ledger entry before current time-bucket"""
sle = get_stock_ledger_entries(args, "<", "desc", "limit 1", for_update=False)
sle = sle[0] if sle else frappe._dict()
return sle
def get_sle_after_datetime(self, args):
"""get Stock Ledger Entries after a particular datetime, for reposting"""
return get_stock_ledger_entries(args, ">", "asc", for_update=True, check_serial_no=False)
def raise_exceptions(self):
msg_list = []
for warehouse, exceptions in iteritems(self.exceptions):
deficiency = min(e["diff"] for e in exceptions)
if ((exceptions[0]["voucher_type"], exceptions[0]["voucher_no"]) in
frappe.local.flags.currently_saving):
msg = _("{0} units of {1} needed in {2} to complete this transaction.").format(
abs(deficiency), frappe.get_desk_link('Item', exceptions[0]["item_code"]),
frappe.get_desk_link('Warehouse', warehouse))
else:
msg = _("{0} units of {1} needed in {2} on {3} {4} for {5} to complete this transaction.").format(
abs(deficiency), frappe.get_desk_link('Item', exceptions[0]["item_code"]),
frappe.get_desk_link('Warehouse', warehouse),
exceptions[0]["posting_date"], exceptions[0]["posting_time"],
frappe.get_desk_link(exceptions[0]["voucher_type"], exceptions[0]["voucher_no"]))
if msg:
msg_list.append(msg)
if msg_list:
message = "\n\n".join(msg_list)
if self.verbose:
frappe.throw(message, NegativeStockError, title='Insufficient Stock')
else:
raise NegativeStockError(message)
def update_bin(self):
# update bin for each warehouse
for warehouse, data in iteritems(self.data):
bin_doc = get_bin(self.item_code, warehouse)
bin_doc.update({
"valuation_rate": data.valuation_rate,
"actual_qty": data.qty_after_transaction,
"stock_value": data.stock_value
})
bin_doc.flags.via_stock_ledger_entry = True
bin_doc.save(ignore_permissions=True)
def get_previous_sle_of_current_voucher(args, exclude_current_voucher=False):
"""get stock ledger entries filtered by specific posting datetime conditions"""
args['time_format'] = '%H:%i:%s'
if not args.get("posting_date"):
args["posting_date"] = "1900-01-01"
if not args.get("posting_time"):
args["posting_time"] = "00:00"
voucher_condition = ""
if exclude_current_voucher:
voucher_no = args.get("voucher_no")
voucher_condition = f"and voucher_no != '{voucher_no}'"
sle = frappe.db.sql("""
select *, timestamp(posting_date, posting_time) as "timestamp"
from `tabStock Ledger Entry`
where item_code = %(item_code)s
and warehouse = %(warehouse)s
and is_cancelled = 0
{voucher_condition}
and timestamp(posting_date, time_format(posting_time, %(time_format)s)) < timestamp(%(posting_date)s, time_format(%(posting_time)s, %(time_format)s))
order by timestamp(posting_date, posting_time) desc, creation desc
limit 1
for update""".format(voucher_condition=voucher_condition), args, as_dict=1)
return sle[0] if sle else frappe._dict()
def get_previous_sle(args, for_update=False):
"""
get the last sle on or before the current time-bucket,
to get actual qty before transaction, this function
is called from various transaction like stock entry, reco etc
args = {
"item_code": "ABC",
"warehouse": "XYZ",
"posting_date": "2012-12-12",
"posting_time": "12:00",
"sle": "name of reference Stock Ledger Entry"
}
"""
args["name"] = args.get("sle", None) or ""
sle = get_stock_ledger_entries(args, "<=", "desc", "limit 1", for_update=for_update)
return sle and sle[0] or {}
def get_stock_ledger_entries(previous_sle, operator=None,
order="desc", limit=None, for_update=False, debug=False, check_serial_no=True):
"""get stock ledger entries filtered by specific posting datetime conditions"""
conditions = " and timestamp(posting_date, posting_time) {0} timestamp(%(posting_date)s, %(posting_time)s)".format(operator)
if previous_sle.get("warehouse"):
conditions += " and warehouse = %(warehouse)s"
elif previous_sle.get("warehouse_condition"):
conditions += " and " + previous_sle.get("warehouse_condition")
if check_serial_no and previous_sle.get("serial_no"):
# conditions += " and serial_no like {}".format(frappe.db.escape('%{0}%'.format(previous_sle.get("serial_no"))))
serial_no = previous_sle.get("serial_no")
conditions += (""" and
(
serial_no = {0}
or serial_no like {1}
or serial_no like {2}
or serial_no like {3}
)
""").format(frappe.db.escape(serial_no), frappe.db.escape('{}\n%'.format(serial_no)),
frappe.db.escape('%\n{}'.format(serial_no)), frappe.db.escape('%\n{}\n%'.format(serial_no)))
if not previous_sle.get("posting_date"):
previous_sle["posting_date"] = "1900-01-01"
if not previous_sle.get("posting_time"):
previous_sle["posting_time"] = "00:00"
if operator in (">", "<=") and previous_sle.get("name"):
conditions += " and name!=%(name)s"
return frappe.db.sql("""
select *, timestamp(posting_date, posting_time) as "timestamp"
from `tabStock Ledger Entry`
where item_code = %%(item_code)s
and is_cancelled = 0
%(conditions)s
order by timestamp(posting_date, posting_time) %(order)s, creation %(order)s
%(limit)s %(for_update)s""" % {
"conditions": conditions,
"limit": limit or "",
"for_update": for_update and "for update" or "",
"order": order
}, previous_sle, as_dict=1, debug=debug)
def get_sle_by_voucher_detail_no(voucher_detail_no, excluded_sle=None):
return frappe.db.get_value('Stock Ledger Entry',
{'voucher_detail_no': voucher_detail_no, 'name': ['!=', excluded_sle]},
['item_code', 'warehouse', 'posting_date', 'posting_time', 'timestamp(posting_date, posting_time) as timestamp'],
as_dict=1)
def get_valuation_rate(item_code, warehouse, voucher_type, voucher_no,
allow_zero_rate=False, currency=None, company=None, raise_error_if_no_rate=True):
# Get valuation rate from last sle for the same item and warehouse
if not company:
company = erpnext.get_default_company()
last_valuation_rate = frappe.db.sql("""select valuation_rate
from `tabStock Ledger Entry`
where
item_code = %s
AND warehouse = %s
AND valuation_rate >= 0
AND NOT (voucher_no = %s AND voucher_type = %s)
order by posting_date desc, posting_time desc, name desc limit 1""", (item_code, warehouse, voucher_no, voucher_type))
if not last_valuation_rate:
# Get valuation rate from last sle for the item against any warehouse
last_valuation_rate = frappe.db.sql("""select valuation_rate
from `tabStock Ledger Entry`
where
item_code = %s
AND valuation_rate > 0
AND NOT(voucher_no = %s AND voucher_type = %s)
order by posting_date desc, posting_time desc, name desc limit 1""", (item_code, voucher_no, voucher_type))
if last_valuation_rate:
return flt(last_valuation_rate[0][0])
# If negative stock allowed, and item delivered without any incoming entry,
# system does not found any SLE, then take valuation rate from Item
valuation_rate = frappe.db.get_value("Item", item_code, "valuation_rate")
if not valuation_rate:
# try Item Standard rate
valuation_rate = frappe.db.get_value("Item", item_code, "standard_rate")
if not valuation_rate:
# try in price list
valuation_rate = frappe.db.get_value('Item Price',
dict(item_code=item_code, buying=1, currency=currency),
'price_list_rate')
if not allow_zero_rate and not valuation_rate and raise_error_if_no_rate \
and cint(erpnext.is_perpetual_inventory_enabled(company)):
frappe.local.message_log = []
form_link = get_link_to_form("Item", item_code)
message = _("Valuation Rate for the Item {0}, is required to do accounting entries for {1} {2}.").format(form_link, voucher_type, voucher_no)
message += "<br><br>" + _("Here are the options to proceed:")
solutions = "<li>" + _("If the item is transacting as a Zero Valuation Rate item in this entry, please enable 'Allow Zero Valuation Rate' in the {0} Item table.").format(voucher_type) + "</li>"
solutions += "<li>" + _("If not, you can Cancel / Submit this entry") + " {0} ".format(frappe.bold("after")) + _("performing either one below:") + "</li>"
sub_solutions = "<ul><li>" + _("Create an incoming stock transaction for the Item.") + "</li>"
sub_solutions += "<li>" + _("Mention Valuation Rate in the Item master.") + "</li></ul>"
msg = message + solutions + sub_solutions + "</li>"
frappe.throw(msg=msg, title=_("Valuation Rate Missing"))
return valuation_rate
def update_qty_in_future_sle(args, allow_negative_stock=False):
"""Recalculate Qty after Transaction in future SLEs based on current SLE."""
datetime_limit_condition = ""
qty_shift = args.actual_qty
# find difference/shift in qty caused by stock reconciliation
if args.voucher_type == "Stock Reconciliation":
qty_shift = get_stock_reco_qty_shift(args)
# find the next nearest stock reco so that we only recalculate SLEs till that point
next_stock_reco_detail = get_next_stock_reco(args)
if next_stock_reco_detail:
detail = next_stock_reco_detail[0]
# add condition to update SLEs before this date & time
datetime_limit_condition = get_datetime_limit_condition(detail)
frappe.db.sql("""
update `tabStock Ledger Entry`
set qty_after_transaction = qty_after_transaction + {qty_shift}
where
item_code = %(item_code)s
and warehouse = %(warehouse)s
and voucher_no != %(voucher_no)s
and is_cancelled = 0
and (timestamp(posting_date, posting_time) > timestamp(%(posting_date)s, %(posting_time)s)
or (
timestamp(posting_date, posting_time) = timestamp(%(posting_date)s, %(posting_time)s)
and creation > %(creation)s
)
)
{datetime_limit_condition}
""".format(qty_shift=qty_shift, datetime_limit_condition=datetime_limit_condition), args)
validate_negative_qty_in_future_sle(args, allow_negative_stock)
def get_stock_reco_qty_shift(args):
stock_reco_qty_shift = 0
if args.get("is_cancelled"):
if args.get("previous_qty_after_transaction"):
# get qty (balance) that was set at submission
last_balance = args.get("previous_qty_after_transaction")
stock_reco_qty_shift = flt(args.qty_after_transaction) - flt(last_balance)
else:
stock_reco_qty_shift = flt(args.actual_qty)
else:
# reco is being submitted
last_balance = get_previous_sle_of_current_voucher(args,
exclude_current_voucher=True).get("qty_after_transaction")
if last_balance is not None:
stock_reco_qty_shift = flt(args.qty_after_transaction) - flt(last_balance)
else:
stock_reco_qty_shift = args.qty_after_transaction
return stock_reco_qty_shift
def get_next_stock_reco(args):
"""Returns next nearest stock reconciliaton's details."""
return frappe.db.sql("""
select
name, posting_date, posting_time, creation, voucher_no
from
`tabStock Ledger Entry`
where
item_code = %(item_code)s
and warehouse = %(warehouse)s
and voucher_type = 'Stock Reconciliation'
and voucher_no != %(voucher_no)s
and is_cancelled = 0
and (timestamp(posting_date, posting_time) > timestamp(%(posting_date)s, %(posting_time)s)
or (
timestamp(posting_date, posting_time) = timestamp(%(posting_date)s, %(posting_time)s)
and creation > %(creation)s
)
)
limit 1
""", args, as_dict=1)
def get_datetime_limit_condition(detail):
return f"""
and
(timestamp(posting_date, posting_time) < timestamp('{detail.posting_date}', '{detail.posting_time}')
or (
timestamp(posting_date, posting_time) = timestamp('{detail.posting_date}', '{detail.posting_time}')
and creation < '{detail.creation}'
)
)"""
def validate_negative_qty_in_future_sle(args, allow_negative_stock=False):
allow_negative_stock = cint(allow_negative_stock) \
or cint(frappe.db.get_single_value("Stock Settings", "allow_negative_stock"))
if (args.actual_qty < 0 or args.voucher_type == "Stock Reconciliation") and not allow_negative_stock:
sle = get_future_sle_with_negative_qty(args)
if sle:
message = _("{0} units of {1} needed in {2} on {3} {4} for {5} to complete this transaction.").format(
abs(sle[0]["qty_after_transaction"]),
frappe.get_desk_link('Item', args.item_code),
frappe.get_desk_link('Warehouse', args.warehouse),
sle[0]["posting_date"], sle[0]["posting_time"],
frappe.get_desk_link(sle[0]["voucher_type"], sle[0]["voucher_no"]))
frappe.throw(message, NegativeStockError, title='Insufficient Stock')
def get_future_sle_with_negative_qty(args):
return frappe.db.sql("""
select
qty_after_transaction, posting_date, posting_time,
voucher_type, voucher_no
from `tabStock Ledger Entry`
where
item_code = %(item_code)s
and warehouse = %(warehouse)s
and voucher_no != %(voucher_no)s
and timestamp(posting_date, posting_time) >= timestamp(%(posting_date)s, %(posting_time)s)
and is_cancelled = 0
and qty_after_transaction < 0
order by timestamp(posting_date, posting_time) asc
limit 1
""", args, as_dict=1)
def _round_off_if_near_zero(number: float, precision: int = 6) -> float:
""" Rounds off the number to zero only if number is close to zero for decimal
specified in precision. Precision defaults to 6.
"""
if flt(number) < (1.0 / (10**precision)):
return 0
return flt(number)